Treasures of Mt. Takao

Mt. Takao is considered one of the three major habitat of insects along with Minoo (Osaka prefecture) and Kibune (Kyoto prefecture) and it has long been loved by researchers of insects because of number of species and the easy access from the Metropolitan area. There are many insects first found in Mt. Takao and named after "Takao" such as Takao Shachihoko (Hiradonta takaonis Matsumura) and Takao medaka kamikiri (Stenhomalus takaosanus).

Potanthus flavus (Japanese Dart)
Potanthus flavus (Japanese Dart) Hesperiidae
Main Region: South part of Hokkaido, Honshu, Shikoku, Kyushu, Tanega Island and Yaku Island.
Found in sunny grasslands around forests from low elevations, hills and mountains.
Japanese name Kimadara-seseri literally meaning yellow irregularly patterned hesperiidae comes from its yellow irregularly placed pattern on brown wings.
Have similar patterns on both sides of wings but is yellow-brown on the back with less distinct patterns.
Adults fly from summer and feed on nectar of annual fleabane and Japanese thistle.
Suck water on the ground.
Caterpillars feed on leaves of poaceae family including Miscanthus sinensis, job's tears and Pleioblastus chino.
Tips of wings are sharp for male and round for female.

●Wingspan  about 26 to 32 mm
●Adult Flight Season  June to about September
※Quotation from Mount Takao formula application
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